Lantus Cat Insulin & Diabetes Medication | Petco

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Health & Wellness
My diabetic cat's insulin is expensive. Any OTC human alternatives?
I’m assuming you meant ProZinc insulin and if so there is unfortunately not a cheaper alternative. While less expensive human insulin can on rare occasions be used successfully in cats it usually does not provide good control of diabetes. You also need to start over with dosing and frequent monitoring when switching from one insulin to another which would increase cost. It’s probably best to stick with ProZinc if Mikey is well regulated.
Updated on September 24th, 2025
Health & Wellness
Are there alternatives to insulin for treating diabetes in cats?
Unfortunately for diabetes type one insulin it is necessary. For type two diabetes, dietary change (low carbohydrates diet) and oral hypoglycemic medications are available as well but their use needs to be discussed with your local veterinarian.
Updated on September 24th, 2025
Health & Wellness
Should I worry? My senior diabetic cat is lethargic and not eating.
Hello. I am concerned that a possible problem has occurred by the use of medication in his ear. Also, a cat on Lantus needs to eat. This is a situation where you should see your vet as soon as you can. L-lysine was thought to lessen the effects of some herpes related upper respiratory infections, but it has turned out not to be very effective. There is nothing about L-lysine that will be of benefit for Handsome at this time. You do need to see if there is some other underlying condition affecting him, & you do need to check his blood glucose in case his Lantus dose needs to be adjusted. I hope he is feeling better soon. Thanks for using Petco Pet Education Center, formerly Petcoach.
Updated on September 24th, 2025
Health & Wellness
My cat's diabetes isn't controlled by Vetsulin. What's next?
I found that in cats often Vetsulin is not able to correct Insulin levels long term and that such cats may do better with Prozinc Insulin. This is something you may want to discuss with your veterinarian. Another problem that often keeps cats from regulating is when they have tartar, gingivitis and bad teeth. In that case a dental cleaning often works wonders. This will also reduce stress from dental pain.
Updated on September 24th, 2025
Health & Wellness
How to determine if my diabetic cat's insulin dosage needs changing?
Hi, you would probably need to go through a consultation as this allows several messages and much more in depth advice. Important information such as when was she first diagnosed and what dosage of insulin she was started on and if she had any blood tests afterwards and what they indicated. What was her initial weight and how is her weight doing. What do you normally feed her and what times. Is she allowed to go outside, what other medications is she on. There are lots of things to consider and a face to face examination is always advisable at least once every six months. However in the short term, you could have a consultation with one of the experts here, hope this helps !
Updated on September 24th, 2025